I designed this tree for my DnD group. The print shouldn't need supports.
For post-print processing I designed and printed a thin sword which I then submerged in a blue died resin. I would recommend doing this part in layers. I tried to do everything at once and the sword kept floating to the top which ended up looking worse than I would have liked. If you do multiple layers you can solidify the sword in place before pouring more resin on.